misc: update pull request template

.github/pull_request_template.md

@@ -1,4 +1,18 @@
-# License Agreement for Contributions
-By submitting this pull request, I acknowledge and agree that my contributions will be included in Stirling-PDF and that they can be relicensed in the future under MPL 2.0 (Mozilla Public License Version 2.0) license. 
+# Description
+
+Please provide a summary of the changes, including relevant motivation and context.
+
+Closes #(issue_number)
+
+## Checklist:
+
+- [ ] I have read the [Contribution Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
+- [ ] I have performed a self-review of my own code
+- [ ] I have commented my code, particularly in hard-to-understand areas
+- [ ] My changes generate no new warnings
+
+## Contributor License Agreement
+
+By submitting this pull request, I acknowledge and agree that my contributions will be included in Stirling-PDF and that they can be relicensed in the future under the MPL 2.0 (Mozilla Public License Version 2.0) license.
 
 (This does not change the general open-source nature of Stirling-PDF, simply moving from one license to another license)

.github/workflows/pull_request_template.md

@@ -1,3 +0,0 @@
-# License Agreement for Contributions
-By submitting this pull request, I acknowledge and agree that my contributions will be included in Stirling-PDF and that they can be relicensed in the future under MPL 2.0 (Mozilla Public License Version 2.0) license. 
-(This does not change the open-source nature of Stirling-PDF, simply moving from one license to another license)